/*
* UVCCamera
* library and sample to access to UVC web camera on non-rooted Android device
*
* Copyright (c) 2014-2017 saki t_saki@serenegiant.com
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* All files in the folder are under this Apache License, Version 2.0.
* Files in the libjpeg-turbo, libusb, libuvc, rapidjson folder
* may have a different license, see the respective files.
*/
package com.serenegiant.usb;
import java.util.Locale;
import android.os.Parcel;
import android.os.Parcelable;
public class Size implements Parcelable {
//
/**
* native側のuvc_raw_format_tの値, こっちは主にlibuvc用
* 9999 is still image
*/
public int type;
/**
* native側のraw_frame_tの値, androusb用,
* libuvcは対応していない
*/
public int frame_type;
public int index;
public int width;
public int height;
public int frameIntervalType;
public int frameIntervalIndex;
public int[] intervals;
// ここ以下はframeIntervalTypeとintervalsから#updateFrameRateで計算する
public float[] fps;
private String frameRates;
/**
* コンストラクタ
* @param _type native側のraw_format_tの値, ただし9999は静止画
* @param _frame_type native側のraw_frame_tの値
* @param _index
* @param _width
* @param _height
*/
public Size(final int _type, final int _frame_type, final int _index, final int _width, final int _height) {
type = _type;
frame_type = _frame_type;
index = _index;
width = _width;
height = _height;
frameIntervalType = -1;
frameIntervalIndex = 0;
intervals = null;
updateFrameRate();
}
/**
* コンストラクタ
* @param _type native側のraw_format_tの値, ただし9999は静止画
* @param _frame_type native側のraw_frame_tの値
* @param _index
* @param _width
* @param _height
* @param _min_intervals
* @param _max_intervals
*/
public Size(final int _type, final int _frame_type, final int _index, final int _width, final int _height, final int _min_intervals, final int _max_intervals, final int _step) {
type = _type;
frame_type = _frame_type;
index = _index;
width = _width;
height = _height;
frameIntervalType = 0;
frameIntervalIndex = 0;
intervals = new int[3];
intervals[0] = _min_intervals;
intervals[1] = _max_intervals;
intervals[2] = _step;
updateFrameRate();
}
/**
* コンストラクタ
* @param _type native側のraw_format_tの値, ただし9999は静止画
* @param _frame_type native側のraw_frame_tの値
* @param _index
* @param _width
* @param _height
* @param _intervals
*/
public Size(final int _type, final int _frame_type, final int _index, final int _width, final int _height, final int[] _intervals) {
type = _type;
frame_type = _frame_type;
index = _index;
width = _width;
height = _height;
final int n = _intervals != null ? _intervals.length : -1;
if (n > 0) {
frameIntervalType = n;
intervals = new int[n];
System.arraycopy(_intervals, 0, intervals, 0, n);
} else {
frameIntervalType = -1;
intervals = null;
}
frameIntervalIndex = 0;
updateFrameRate();
}
/**
* コピーコンストラクタ
* @param other
*/
public Size(final Size other) {
type = other.type;
frame_type = other.frame_type;
index = other.index;
width = other.width;
height = other.height;
frameIntervalType = other.frameIntervalType;
frameIntervalIndex = other.frameIntervalIndex;
final int n = other.intervals != null ? other.intervals.length : -1;
if (n > 0) {
intervals = new int[n];
System.arraycopy(other.intervals, 0, intervals, 0, n);
} else {
intervals = null;
}
updateFrameRate();
}
private Size(final Parcel source) {
// 読み取り順はwriteToParcelでの書き込み順と同じでないとダメ
type = source.readInt();
frame_type = source.readInt();
index = source.readInt();
width = source.readInt();
height = source.readInt();
frameIntervalType = source.readInt();
frameIntervalIndex = source.readInt();
if (frameIntervalType >= 0) {
if (frameIntervalType > 0) {
intervals = new int[frameIntervalType];
} else {
intervals = new int[3];
}
source.readIntArray(intervals);
} else {
intervals = null;
}
updateFrameRate();
}
public Size set(final Size other) {
if (other != null) {
type = other.type;
frame_type = other.frame_type;
index = other.index;
width = other.width;
height = other.height;
frameIntervalType = other.frameIntervalType;
frameIntervalIndex = other.frameIntervalIndex;
final int n = other.intervals != null ? other.intervals.length : -1;
if (n > 0) {
intervals = new int[n];
System.arraycopy(other.intervals, 0, intervals, 0, n);
} else {
intervals = null;
}
updateFrameRate();
}
return this;
}
public float getCurrentFrameRate() throws IllegalStateException {
final int n = fps != null ? fps.length : 0;
if ((frameIntervalIndex >= 0) && (frameIntervalIndex < n)) {
return fps[frameIntervalIndex];
}
throw new IllegalStateException("unknown frame rate or not ready");
}
public void setCurrentFrameRate(final float frameRate) {
// 一番近いのを選ぶ
int index = -1;
final int n = fps != null ? fps.length : 0;
for (int i = 0; i < n; i++) {
if (fps[i] <= frameRate) {
index = i;
break;
}
}
frameIntervalIndex = index;
}
@Override
public int describeContents() {
return 0;
}
@Override
public void writeToParcel(final Parcel dest, final int flags) {
dest.writeInt(type);
dest.writeInt(frame_type);
dest.writeInt(index);
dest.writeInt(width);
dest.writeInt(height);
dest.writeInt(frameIntervalType);
dest.writeInt(frameIntervalIndex);
if (intervals != null) {
dest.writeIntArray(intervals);
}
}
public void updateFrameRate() {
final int n = frameIntervalType;
if (n > 0) {
fps = new float[n];
for (int i = 0; i < n; i++) {
final float _fps = fps[i] = 10000000.0f / intervals[i];
}
} else if (n == 0) {
try {
final int min = Math.min(intervals[0], intervals[1]);
final int max = Math.max(intervals[0], intervals[1]);
final int step = intervals[2];
if (step > 0) {
int m = 0;
for (int i = min; i <= max; i+= step) { m++; }
fps = new float[m];
m = 0;
for (int i = min; i <= max; i+= step) {
final float _fps = fps[m++] = 10000000.0f / i;
}
} else {
final float max_fps = 10000000.0f / min;
int m = 0;
for (float fps = 10000000.0f / min; fps <= max_fps; fps += 1.0f) { m++; }
fps = new float[m];
m = 0;
for (float fps = 10000000.0f / min; fps <= max_fps; fps += 1.0f) {
this.fps[m++] = fps;
}
}
} catch (final Exception e) {
// ignore, なんでかminとmaxが0になってるんちゃうかな
fps = null;
}
}
final int m = fps != null ? fps.length : 0;
final StringBuilder sb = new StringBuilder();
sb.append("[");
for (int i = 0; i < m; i++) {
sb.append(String.format(Locale.US, "%4.1f", fps[i]));
if (i < m-1) {
sb.append(",");
}
}
sb.append("]");
frameRates = sb.toString();
if (frameIntervalIndex > m) {
frameIntervalIndex = 0;
}
}
@Override
public String toString() {
float frame_rate = 0.0f;
try {
frame_rate = getCurrentFrameRate();
} catch (final Exception e) {
}
return String.format(Locale.US, "Size(%dx%d@%4.1f,type:%d,frame:%d,index:%d,%s)", width, height, frame_rate, type, frame_type, index, frameRates);
}
public static final Creator<Size> CREATOR = new Parcelable.Creator<Size>() {
@Override
public Size createFromParcel(final Parcel source) {
return new Size(source);
}
@Override
public Size[] newArray(final int size) {
return new Size[size];
}
};
}